Display substrate and display device

Abstract

A display substrate and a display device are provided. The display substrate includes a display region and an opening located in the display region, the opening penetrates through the display substrate, and the display substrate includes a base substrate, a driving circuit layer, a light-emitting component layer, an encapsulation layer, and a touch control layer. The driving circuit layer includes a first signal line at least partially surrounding the opening; the light-emitting component layer is provided on a side of the driving circuit layer away from the base substrate; the encapsulation layer is provided on a side of the light-emitting component layer away from the base substrate; the touch control layer includes a touch control electrode and a touch control compensation electrode at least partially surrounding the opening; the first signal line at least partially overlaps with the touch control compensation electrode.

1 . A display substrate, comprising a display region and an opening located in the display region, wherein the opening penetrates through the display substrate, and the display substrate comprises:
 a base substrate;   a driving circuit layer, provided on the base substrate and comprising a first signal line at least partially surrounding the opening;   a light-emitting component layer, provided on a side of the driving circuit layer away from the base substrate;   an encapsulation layer, provided on a side of the light-emitting component layer away from the base substrate; and   a touch control layer, provided on a side of the encapsulation layer away from the base substrate and comprising a touch control electrode and a touch control compensation electrode, the touch control compensation electrode being electrically connected to the touch control electrode and at least partially surrounding the opening;   wherein the first signal line at least partially overlaps with the touch control compensation electrode in a direction perpendicular to a main surface of the base substrate,   wherein the first signal line comprises a first sub-signal line surrounding the opening, and a longitudinal cross-section of the first sub-signal line is provided with at least one bent portion.   
     
     
         2 . The display substrate according to  claim 1 , wherein the touch control electrode further comprises a first touch control electrode extending along the first direction, and the first touch control electrode comprises a first sub-touch control electrode and a second sub-touch control electrode that are provided adjacent to each other along the second direction;
 the touch control compensation electrode comprises a second touch control compensation electrode, and the second touch control compensation electrode comprises a fourth sub-compensation electrode and a fifth sub-compensation electrode extending along the edge of the opening; and   the fourth sub-compensation electrode is electrically connected to the first sub-touch control electrode, and the fifth sub-compensation electrode is electrically connected to the second sub-touch control electrode.   
     
     
         3 . The display substrate according to  claim 2 , wherein the fourth sub-compensation electrode comprises a first connection portion for electrical connection, and the fifth sub-compensation electrode comprises a second connection portion for electrical connection;
 in the direction perpendicular to the main surface of the base substrate, the first connection portion and the first sub-compensation electrode have a first overlapping region, and/or   the second connection portion and the second sub-compensation electrode have a second overlapping region.   
     
     
         4 . The display substrate according to  claim 3 , wherein
 at least one of the first connection portion and the first sub-compensation electrode is provided with a hollow portion in the first overlapping region, and/or   at least one of the second connection portion and the second sub-compensation electrode is provided with a hollow portion in the second overlapping region.   
     
     
         5 . The display substrate according to  claim 3 , wherein the opening is provided with a center R, and an included angle between a line, which is from any point of an overlapping part of the first connection portion and the first sub-compensation electrode to the center R, and an extension direction of the first connection portion is α1, then α1<20°; and/or
 an included angle between a line, which is from any point of an overlapping part of the second connection portion and the second sub-compensation electrode to the center R, and an extension direction of the second connection portion is θ1, then θ1<20°. 
 
     
     
         6 . The display substrate according to  claim 4 , wherein an overlapping area of the first connection portion and the first sub-compensation electrode is S 1 , the first sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the first sub-compensation electrode is S 1 ′, then 0.40<S 1 /(S 1 +S 1 ′)<0.71; and/or
 an overlapping area of the second connection portion and the second sub-compensation electrode is S 2 , the second sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the second sub-compensation electrode is S 2 ′, then 0.40<S 2 /(S 2 +S 2 ′)<0.71. 
 
     
     
         7 . The display substrate according to  claim 4 , wherein an overlapping area of the first connection portion and the first sub-compensation electrode is S 1 , the first sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the first sub-compensation electrode is S 1 ′; and
 the opening is provided with a center R, and an included angle between a line, which is from any point of an overlapping part of the first connection portion and the first sub-compensation electrode to the center R, and an extension direction of the first connection portion is α1, then
   α1<20° and 0.40<S 1 /(S 1 +S 1 ′)<0.71.
 
 
 
     
     
         8 . The display substrate according to  claim 1 , wherein the first signal line further comprises a second sub-signal line and a third sub-signal line both surrounding the opening, the first sub-signal line is located on a side of the second sub-signal line away from the base substrate, and the third sub-signal line is located on a side of the first sub-signal line away from the base substrate; and
 an included angle between a side wall of the third sub-signal line and the main surface of the base substrate is α2, an included angle between a side wall of the first sub-signal line and the main surface of the base substrate is α3, and an included angle between a side wall of the second sub-signal line and the main surface of the base substrate is α4, then
   α3≤α4 and α3≤α2, where α2<75°, α3>30°, and 40°<α4<50°.
 
   
     
     
         9 . The display substrate according to  claim 8 , wherein
 a width of an orthographic projection of the first sub-signal line on the base substrate is smaller than a width of an orthographic projection of the third sub-signal line on the base substrate;   a width of an orthographic projection of the first sub-signal line on the base substrate is W 1 , and W 1  ranges from 1.3 μm to 1.7 μm; and   a width of an orthographic projection of the third sub-signal line on the base substrate is W 2 , and W 2  ranges from 1.7 μm to 2.3 μm.   
     
     
         10 . The display substrate according to  claim 8 , wherein an extension length of an orthographic projection of the first sub-signal line on the base substrate is substantially equal to an extension length of an orthographic projection of the third sub-signal line on the base substrate. 
     
     
         11 . The display substrate according to  claim 8 , wherein an orthographic projection of the first sub-signal line on the base substrate and an orthographic projection of the second sub-signal line on the base substrate have a first overlapping part, and a width of the first overlapping part ranges from 0 μm to 0.1 μm. 
     
     
         12 . The display substrate according to  claim 8 , wherein an orthographic projection of the third sub-signal line on the base substrate and an orthographic projection of the second sub-signal line on the base substrate have a second overlapping part, and a width of the second overlapping part ranges from 0.18 μm to 0.30 μm. 
     
     
         13 . The display substrate according to  claim 1 , wherein a longitudinal cross-section of the first sub-signal line comprises a V-shaped portion and an extension portion located on at least one end of the V-shaped portion, an included angle between a sidewall of the V-shaped portion and the main surface of the base substrate is α3-1, and an included angle between a side of the extension portion close to the base substrate and the main surface of the base substrate is α3-2, then
   α3-1>α3-2, where α3-1<46° and α3-2>10°.
 
 
     
     
         14 . The display substrate according to  claim 1 , wherein a longitudinal cross-section of the first sub-signal line comprises a V-shaped portion and an extension portion located on at least one end of the V-shaped portion, an included angle between a sidewall of the V-shaped portion and the main surface of the base substrate is α3-1, and an included angle between a side of the extension portion close to the base substrate and the main surface of the base substrate is α3-2, then
   α3-1≥α3-2, where α3-1<30° and α3-2>15°.
 
 
     
     
         15 . The display substrate according to  claim 1 , wherein a longitudinal cross-section of the first sub-signal line comprises an inclined portion and an extension portion located on at least one end of the inclined portion, an included angle between a sidewall of the inclined portion and the main surface of the base substrate is α3-1, and an included angle between a side of the extension portion close to the base substrate and the main surface of the base substrate is α3-2, then
   α3-1>α3-2, where α3-1<30° and 0°<α3-2<10°.
 
 
     
     
         16 . The display substrate according to  claim 8 , wherein the driving circuit layer comprises a plurality of pixel driving circuits, the light-emitting component layer comprises a plurality of light-emitting components, and the plurality of pixel driving circuits are respectively electrically connected to the plurality of light-emitting components to respectively drive the plurality of light-emitting components;
 the pixel driving circuit comprises a thin film transistor and a storage capacitor, the thin film transistor comprises a gate electrode, a source electrode and a drain electrode provided on the base substrate, the source electrode and drain electrode are provided on a side of the gate electrode away from the base substrate, the storage capacitor comprises a first capacitor electrode and a second capacitor electrode provided on the base substrate, and the second capacitor electrode is provided on a side of the first capacitor electrode away from the base substrate; and   the first sub-signal line is provided in a same layer and with a same material as the source electrode and the drain electrode, and the gate electrode is provided in a same layer and with a same material as the first capacitor electrode.   
     
     
         17 . The display substrate according to  claim 16 , wherein the second sub-signal line is provided in a same layer and with a same material as the gate electrode or the second capacitor electrode. 
     
     
         18 . The display substrate according to  claim 16 , wherein the pixel driving circuit further comprises a connection electrode provided on a side of the source electrode and the drain electrode away from the base substrate, the light-emitting component is electrically connected to one of the source electrode and the drain electrode through the connection electrode, and
 the third sub-signal line is provided in a same layer and with a same material as the connection electrode.   
     
     
         19 . The display substrate according to  claim 16 , wherein the first signal line is electrically connected to the pixel driving circuit and configured to provide a data signal or a scanning signal to the pixel driving circuit. 
     
     
         20 . A display device, comprising a display substrate, wherein the display substrate comprises: a display region and an opening located in the display region, wherein the opening penetrates through the display substrate, and the display substrate comprises:
 a base substrate;   a driving circuit layer, provided on the base substrate and comprising a first signal line at least partially surrounding the opening;   a light-emitting component layer, provided on a side of the driving circuit layer away from the base substrate;   an encapsulation layer, provided on a side of the light-emitting component layer away from the base substrate; and   a touch control layer, provided on a side of the encapsulation layer away from the base substrate and comprising a touch control electrode and a touch control compensation electrode, the touch control compensation electrode being electrically connected to the touch control electrode and at least partially surrounding the opening;   wherein the first signal line at least partially overlaps with the touch control compensation electrode in a direction perpendicular to a main surface of the base substrate,   wherein the first signal line comprises a first sub-signal line surrounding the opening, and a longitudinal cross-section of the first sub-signal line is provided with at least one bent portion.